Recent Blog Articles
Harvard Health Ad Watch: An IV treatment for thyroid eye disease
Taking up adaptive sports
Cutting and self-harm: Why it happens and what to do
Discrimination at work is linked to high blood pressure
Pouring from an empty cup? Three ways to refill emotionally
Give praise to the elbow: A bending, twisting marvel
Sneezy and dopey? Seasonal allergies and your brain
The FDA relaxes restrictions on blood donation
Apps to accelerometers: Can technology improve mental health in older adults?
Swimming and skin: What to know if a child has eczema
Omega-3-rich foods: Good for your heart
Learn what these essential fatty acids can do for your cardiovascular health, and where to find the best sources.
Back in the 1970s, Danish researchers discovered something curious about the Inuits of Greenland. Despite eating a high-fat diet (about 40% of their daily calories came from fat), the Inuits had far lower rates of heart disease and heart attacks than people in Western nations. When the researchers delved deeper, they discovered one reason for the Inuits' low rates of heart disease: a seafood-heavy diet rich in the polyunsaturated omega-3 fatty acids—eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). Since then, investigators have homed in on omega-3s—not just for their cardiovascular benefits, but also for their potential effects on thinking ability, vision, and inflammation.
To continue reading this article, you must log in.
Subscribe to Harvard Health Online for immediate access to health news and information from Harvard Medical School.
- Research health conditions
- Check your symptoms
- Prepare for a doctor's visit or test
- Find the best treatments and procedures for you
- Explore options for better nutrition and exercise
I'd like to receive access to Harvard Health Online for only $4.99 a month.Sign Me Up
Already a member? Login ».
As a service to our readers, Harvard Health Publishing provides access to our library of archived content. Please note the date of last review or update on all articles.
No content on this site, regardless of date, should ever be used as a substitute for direct medical advice from your doctor or other qualified clinician.
Free Healthbeat Signup
Get the latest in health news delivered to your inbox!